The transient state of displacement fields in the machining zone of a target material during abrasive waterjet impinging and drilling was investigated. A moiré interferometry experimental setup for recording displacement fields and a dynamometer for measuring the reaction force were developed. Whole fields of surface displacement fields and the reaction force of the ceramic and polycarbonate target materials were successfully recorded when the specimen was being pierced by high-pressure abrasive waterjet (AWJ). This paper demonstrates that bothu andv displacement fields of a workpiece during AWJ drilling can be recorded in real time and simultaneously by the moiré interferometry experimentation. The measured surface displacement distributions and the machining forces will be used to drive a finite element model in the second part of this investigation, in which the authors study the stress and strain state for the target material associated with the jet-materials interaction during the jet penetration process.
[1]
M. Hashish,et al.
Material Properties in Abrasive-Waterjet Machining
,
1995
.
[2]
Mamidala Ramulu,et al.
Dynamic photoelastic investigation on the mechanics of waterjet and abrasive waterjet machining
,
1993
.
[3]
Bongtae Han,et al.
High sensitivity moiré
,
1994
.
[4]
P. Ifju,et al.
High Sensitivity Moiré: Experimental Analysis for Mechanics and Materials
,
1995
.
[5]
Hybrid analysis of plate problems
,
1981
.
[6]
Albert S. Kobayashi,et al.
Hybrid experimental-numerical stress analysis
,
1983
.
[7]
M. Ramulu,et al.
Investigation of displacement fields in an abrasive waterjet drilling process: Part 2. Numerical analysis
,
2001
.